Answers
Answer:
h=√p^2+b^2
13 = √x^2+(x+7)^2 now you can solve
Answer:
x = 5
Step-by-step explanation:
Using Pythagoras' identity in the right triangle.
The square on the hypotenuse is equal to the sum of the squares on the other 2 sides, that is
x² + (x + 7)² = 13² ← expand and simplify left side
x² + x² + 14x + 49 = 169 ( subtract 169 from both sides )
2x² + 14x - 120 = 0 ( divide through by 2 )
x² + 7x - 60 = 0 ← in standard form
(x + 12)(x - 5) = 0 ← in factored form
Equate each factor to zero and solve for x
x + 12 = 0 ⇒ x = - 12
x - 5 = 0 ⇒ x = 5
But x > 0 , thus x = 5
Related Questions
The graph below shows a system of equations:
The x-coordinate of the solution to the system of equations is
Answers
Answer:
solution is (-2, 2) so x-coordinate of solution is -2
Step-by-step explanation:
Answer:
-2
Step-by-step explanation:
First, we have to write down both equations.
y = x + 4
3y = -2x + 2
Now we already have an equation that we can plug into the other equation.
= 3(x + 4) = -2x + 2
= 3x + 12 = -2x + 2
= 5x + 12 = 2
= 5x = -10
x = -2
Now we know that x = -2, and the question asks for the x-coordinate, which is -2.
In the diagram below of rectangle RSTU, diagonals RT and SU intersect at 0.
RT = 6x + 4 and 50 = 7% -6, what is the length of US?
U
A) 8
x
B) 2
C) 16
R
D) 32
Answers
6x+4=14x-12
16=8x
X=2
B) 2
I think it’s correct
Answer: 16
Step-by-step explanation:
hi i need help for this question, what's the slope for this
Answers
Answer:
sorry for being late :P
Step-by-step explanation:
slope = rise / run
by inspection of the graph.. it looks like the line goes over 2 units and then up one unit so 1/2.... and b/c it's going up... like up hill.. it's positive...
+ 1/2 is the slope
9x=-9
pls help asap
Answers
Every day, Isabella practices the piano for 0.75 hour and the flute for 1.4 hours. What is the total number of hours that she practiced in April? (Reminder: April has 30 days
Answers
Answer:
She practiced a total of 64.5 hours
Step-by-step explanation:
Here, we need to know the number of hours practiced on both per day
Mathematically, that will be;
0.75 + 1.4 = 2.15 hours per day
So in 30 days ; the total number of hours will be
30 * 2.15 = 64.5 hours
7a - b- 6a + 5b find the answer to the equation
Answers
Answer:
a+4b
Step-by-step explanation:
Solution:
7a-b-6a+5b
=7a-6a-b+5b
=1a+4b
So, the answer is 1a+4b
help it’s also not D :)
Answers
Answer:
the answear is c
Step-by-step explanation:
i learnt in class that the number with the letter is used to divide what it equalls
Answer:
C
Step-by-step explanation:
Step 2 is correct, that is
8x = 10 ( divide both sides by 8 ), error made here by dividing by 10
x = [tex]\frac{10}{8}[/tex]
x = [tex]\frac{5}{4}[/tex]
The error was made at step 3
A hot air balloon was flying at an altitude of 300 meters when the pilot decided to land by descending at a rate of 2 meters per second.For which of these functions doesy represent the altitude of the hot air balloon if x represents the number of seconds since the pilot started her landing?
Answers
Two bikers rode at a constant speed on a 150-meter track. The data here show each biker's distance for a certain part of the race. Who won the race and by how much?
Answers
Answer: 2 then 1
Step-by-step explanation:
Just did it
Max was fencing in his rectangular pool area. The length of the pool was (2x -3) feet and the width of the pool was (x + 4) feet. a) Write and simplify an expression for the perimeter of the pool area to be fenced in. Be sure to include the formula!
Answers
Answer:
(6x + 2) feet
Step-by-step explanation:
The formula for the perimeter of a rectangle = 2L + 2 W
Where L = Length
W = Width
Hence, the:
The length of the pool was (2x -3) feet and the width of the pool was (x + 4) feet.
The perimeter of the rectangular pool =
2(2x - 3) + 2(x + 4)
= 4x - 6 + 2x + 8
= 4x + 2x - 6 + 8
= (6x + 2) feet
Therefore, an expression for the perimeter of the pool area to be fenced is (6x + 2) feet
Help!!
Find the solution of this system of equations
x- 10y = -59
-4x + 10y = 86
Answers
Answer:
x - 10y = -59
(+)-4x + 10y = 86
-3x = 27
x = -9
substitute x into x - 10y = -59
-9 -10y = -59
-10y = -50
y = 5
An alarm rings 8 times in 5 seconds.What is the unitr rate,in rings per second?
Answers
Answer: the answer is 1.6
Step-by-step explanation: 8 divided by 5 is 1.6
Evaluate f(-2) if f(x) = x2+ 3
Answers
Answer:
f(-2) = 7
Step-by-step explanation:
-2 squared would be a positive 4 then add 3
Answer:
f(-2) = 7
Step-by-step explanation:
becuase yes
Titus cuts 3/4 inch sections of wood to make a birdhouse. He cut 36 sections. How many inches did he cut?
SHOW YOUR WORK FOR DOUBLE THE POINTS AND YOU GET PICKED BRAINLIST
!!! I WILL REPORT YOU IF YOU CHEAT!!!
Answers
Answer:
report me if i cheat nah its 4
Step-by-step explanation:
Find the value of x that makes m || n
Answers
Answer:
a) 24
Step-by-step explanation:
To make m//n, the sum of co-interior angles (4x + 84) should be 180
4x + 84 = 180
4x = 180 - 84
4x = 96
x = 96/4
x = 24
An elevator can carry 800 pounds of weight.
A football player weighing 280 pounds gets on the elevator with a student weighing 95 pounds. Write and solve an inequality representing the
remaining weight x that can be added.
Answers
Answer:
800 > x + 375
x < 425
Step-by-step explanation:
800 > x + 375
425 > x
find the sum:
13,16,19,...301
thanks!
Answers
Answer:
349
Step-by-step explanation:
please give thanks by clicking the heart :)
349
Subtract the expressions: (5z + 4) - 5(-3z -6)
Answers
Hey there!
“(5z – 4) – 5(–3z – 6)”
DISTRIBUTE the RIGHT side of your equation
5z – 4 –5(–3z) + (–5)(–6)
–5(–3) = 15z
(–5)(–6) = 30
NEW EQUATION: 5z – 4 + 15z + 30
COMBINE your LIKE TERMS
(5z + 15z) + (4 + 30)
5z + 15z = 20z
4 + 30 = 34
ANSWER: 20z + 34 ☑️
Good luck on your assignment and enjoy your day!
~LoveYourselfFirst:)
Answer:
20z + 34
Step-by-step explanation:
Plz give me the answers I really need your help. :)
Answers
25 envelopes per minute
82 words per minute
27 miles per gallon
Answer:
1. 25 envelopes
2. 82 words per minute
3. 27 Miles per gallon
Step-by-step explanation:
The ratio of the number of cars to dolls in a toy store is 3/20 . The ratio of the number of male dolls to the number of female dolls is 3:5 There are 500 female dolls. How many toys are there?
Answers
Answer:
800 dolls
Step-by-step explanation:
Step one:
given data
we are told that the ratio of the number of male dolls to the number of female dolls is 3:5 , i.e male dolls to female dolls is 3 to 5
given that there are 500 female dolls, let the number of male dolls be x
Step two:
3/5= x/500
cross multiply we have
3*500=5x
1500=5x
divide both sides by 5
x=1500/5
x=300
hence there are 300 male dolls
The total dolls is 300+500= 800 dolls
15. Write the first four terms of the sequence:
a. f(n) = −2[tex]n^{2}[/tex] + 4
b. f (1) = 7, f(n)= −4 ∙ f(n-1) − 1 + 15
Answers
Answer:
16 17
Step-by-step explanation:
On 12/1/2020 a total of 14,108,603 people in the US have tested positive for the Coronavirus-19 (CV-19). If the daily rate of increase stays at 1.2% (as has been for the past 30 days), how many people would be expected to have tested positive by 12/31/2020 (n=30 days later)? Compounding is continuous.
a. 20,222,275
b. 516, 349. 960
c. 14, 625,765
d. 28,985,182
Please ANSWER ASAP!!!
Answers
Answer:
C
Step-by-step explanation:
Any help please and thank you
Answers
Answer:
n=6
j=15
u=7.6
Step-by-step explanation:
Given TACBRD=MYPXEF
we find that the ratio is 1 : 2.5 and we solve from here
PLZ ANSWER!!! I DONT KNOW HOW TO WRITE THIS SO LOOK AT THE PIC
Answers
Answer:
24
Step-by-step explanation:
Can i have brainliest
This hurts my brain cells help me
Answers
What question are you asking?
Willis drove 239.82 miles in 4.2 hours at a constant speed. How long would it take him to drive 445.38 miles at the same speed? PLZZZ I NEED THIS ASAP WITH THE EXPLANITION
Answers
Answer:
(57.1 miles per hour. )
7.8 hours
Step-by-step explanation:
for f(x) =4x+1 g(x)=x²-5, find (f•g)(x)
Answers
Step-by-step explanation:
The composite function (f o g)(x)
= f(x² - 5)
= 4(x² - 5) + 1
= 4x² - 19.
4x² - 19
This is your correct answer friend
plz help me what is y=4x+8
Answers
Move variable to the left and than you divide both sides of equation by 4
In AJKL, if m2 J = 90°, then K and j are
A) Complementary
O B) Congruent
O C) Obtuse
OD) Right
Answers
Dimas is playing a game that uses a number cube. The sides of the cube are labeled from 1 to 6. Dimas wants to roll a 2 or 3. He rolls the number cube one time
Answers
Answer:
B. 1/3
Step-by-step explanation:
The total number of sides in the cube are 6 (1,2,3,4,5,6). If Dimas only wants to roll either a 2 or 3 then that would mean that he has 2 chances out of the total 6 probable outcomes to roll one of those numbers. Therefore, in order to find the probability of this happening in a single roll we need to divide the number of times that his two choices appear on the dice by the total number of sides the dice has, like so...
2 / 6 = x
If we simplify it would give us [tex]\frac{1}{3}[/tex]